quadrature

在一个时间片下实现对信号的包络线提取，已测试(To achieve the extraction of the envelope signal at the next time slice, tested)

signal detection in a 8x8 system using qrdm algorithm

基于Matlab开发环境的数值计算英文原版书(Numerical Computing with Matlab- Cleve Moler (SIAM 2005 367 pg s))

分析了ofdm系统的过程，包括发送接收和送入信道加入噪声和多址的过程(ofdm system of the process, including the transmission and reception into the channel by adding noise and multi-site process)

substitution cipher is the method of encoding in which unit of plain text are replaced by cipher text. Monoalphabetic cipher uses a fixed message over entire message.A monoalphabetic cipher uses fixed substitution over the entire message.The monoalphabetic substitution takes a letter of an alphabet and substitutes it with another letter, this way a ciphertext is generated. The way of converting is fixed. A character of the plaintext will be replaced by the same ciphertext character, during the entire ciphertext. There is no additional key. The only way of security is to keep the substitution-table secret. A popular example for the monoalphabetic substitution is the caesar cipher.

Image processing program..8-connectivity matlab code...as per the text book by Gonzaloues....

说明：  介绍了一种新的变步长LMS自适应滤波算法。该算法具有较快的收敛速度和较小的失调，并且他不受已经存在的不相关噪声的干扰。(This paper introduces a new variable step size LMS adaptive filtering algorithm. That the algorithm has a faster convergence speed and a smaller offset, and he is not already in existence are not related to noise.)

add menu in matlab tools

说明：  继续上次传的简单遗传算法，本次上传的文件中添加啦交叉。(Continue to the last mass of the simple genetic algorithm, the file upload add you cross.)

由信道信号的复数值解调对应的二进制序列由信道信号的复数值找出对应的二进制序列。方法如下：由信道值， ％％求出该值与星座图中所有点的距离，找出距离最小的点，该点对应的 ％％二进制序列及为该信道对应的解调结果。 (Channel signal by the complex demodulation value corresponding to the binary sequence by the complex channel signals to identify the corresponding binary numerical sequence. As follows: by the channel value, the value obtained with the constellation diagram of all points of distance, find the smallest distance between points, the points of the corresponding binary sequence and the corresponding channel demodulation results.)